Sheet-metal roofing.



K. ROTH. SHEET METAL ROOFING. APPLICATION FILED NOV. 7, 1910.

Patented Feb. 27, 1912.

- UNITED STATES PATENT OFFICE.

KARL ROTH, OF TERRE HAUTE, INDIANA.

SHEET-METAL ROOFING.

Specification of Letters Patent.

' To all whom it may concern Be it known that I, KAnnR-o'rri, a citizenof the United States, residing at Terre Haute, in the county of Vigo andState of Indiana, haveinvented certain new and useful Improvements inSheet-Metal Roofing, of which the following is a specification.Thisinvention relates to sheet metal roofmg.

I am aware that there are any number of different kinds-of roofing onthe market which are provided with peculiar and'in terlocking seams forholding the sheets together, but I have found in the manufacture-ofsheet metal roofing a growing desire among a certain class of people tocover their own buildings, and as those people are rarely provided withthe necessary tools for properly fastening these peculiarly shapedhooked seams their eflorts result in leaky roofs. This condition has, toa certain extent, discouraged the use of sheet metal roofing on farmbuildings for the reason that roofs of this'character laid by skilledworkmen are too expensive for the class of people for which the presentinvention is intended. v

The object of this invention is to provide a simple and easy means forjoining the side edges of sheet metal roofing ,to prevent water fromseeping through the overlapping edges thereof.

I accomplish the object of the invention by certain means illustrated inthe accompanying drawings, forming a part hereof, in which Figure 1 is aview in perspective of two sheets of metal roofing laid side by sidewith the adjacent edges of the sheets overlapping. Fig. 2 is afragmentary detail perspective view of the overlapping edges of twosheets of metal roofing, showing the formation of the ribs for excludingthe water Fig. 3 is a view similar to Fig. 2 except that the two sheetsare separated.

In the drawings, 10 represents the body of the sheet metal material usedfor roofing purposes. Each sheet of metal is provided on one of itslongitudinal edges with two vertically disposed V-shaped ribs 12, andthe opposite edge of each sheet is bent upwardly to form the wall 14,and in addition thereto each sheet is provided with asuflicientlyoverlap the edge of the adjacent sheet so as to permit the rib 12nearest the edge to fit down over the similarly shaped rib 16 in thesheet below, while the second rib 12 will straddle the wall 14 on thesheet below. It will be noted that the operation of laying the sheets isextremely simple, and the ribs and wall as formed will absolutelyprevent water from passing between the overlapped edges oft-he sheets.

It ofttimes happens that water will seep through many of the interlockedjoints in sheet metal roofing, this being common p'articularly-where theoverlapped surfaces of the sheets follow the same common plane andcurve, on account of capillary attraction. For instance, it will benoted in Fig. 2 of the drawings that the V-shaped rib 12 in the uppersheet tightly hugs the rib 16 in the sheet underneath throughout thePatented Feb. 27,1912. application filed November 7, 1910. Serial no.591,072.

edge containing the two ribs 12 is laid to were provided with severalribs of the samefl character, it is quite likely that water would workits way between the overlapped edges of the sheets. To remove all dangerof water passing between the overlapped edges on account of capillaryattraction I provide, as before stated, each sheet with an additionalrib 12 which merely forms a passageway for the wall 14 formed on thesheet underneath. The wall 14 is formed so that its height will besomewhat less than the internal height of the rib above so that anuninterrupted air space is formed theentire length and on both sides ofthe terminal edge of the sheet containing the wall 14. Hence, if, onaccount of capillary attraction, water should climb over the rib 16 1nthe underneath sheet it would be caught and carried away in the channelexisting between the foot of the rib and the foot of the wall 14, andthe said wall would prevent progress of the water transversely of the tobe driven in an location along the ribs and obviates the ifliculty ofbringing the holes of theplates in reglster, whichwwould occur were theholes previously formed in the roof plates? The nails are allprovidedwith lead washers to close the openings around the bodies of thenails, and the latter are driven through the rib 12 and rib 16, as shownin Fig. 2 of the drawings.

Having thus fully described my said invention, what I desire to secureby Letters Patent, is-

' A sheet metal roof consisting of a plurality of metal sheets withoverlapping edges, each sheet provided along one side edge with twovertically disposed ribs of the wideinverted V shape and the oppositeedge of the sheet turned upwardly at a right angle to form a wall and avertically,

disposed to and bein ,so t at when the adjacent metal sheet is laid oversaid wall an uninterrupted air space wiIl remain on both sides and overthe top of said wall and the nails driven rib formed in said sheetadjacent through the ribs adjacent to the onecovering said well, tosecure the said roofing sheets.

In witness whereof, I have hereunto set my hand and seal atIndianapolis, Indiana, this 26th day of October, A. D. one thousand ninehundred and ten.

. KARL ROTH. [1 s.] WVitnesses: I 1

F. W. WOERNER,

L. B. Women.

